Quote image editor
“Even the clearest localization of pain in one area may, in fact, be originating from a distant area .... The reference of pain implies the existence of convergence of inputs within the spinal cord. This leads to the necessary involvement in central neural circuits in the simplest of peripheral disorders. It also leads to the possibility that the basic disorder is entirely central.” — Patrick David Wall
Even the clearest localization of pain in one area may, in fact, be originating from a distant area .... The reference of pain implies the existence of convergence of inputs within the spinal cord. This leads to the necessary involvement in central neural circuits in the simplest of peripheral disorders. It also leads to the possibility that the basic disorder is entirely central.